Location: Outside U.S.
Date: Summer 2009
What is the use of power grid?
The power grid transmits electricity from where it is generated to where it
A good site is:
The power grid distributes electricity from generation sources (power
plants) to end users (homes and businesses). The grid also helps
regulate the flow of electricity to where it is needed, and prevents
upsets in power supply.
Hope this helps,
A power grid is the network of electrical wires that covers an entire
country or often a continent, and whose purpose is to distribute
electrical power that is generated by power generating plants, to
everyone in the country (or even the continent in many cases) who uses
this power. The power grid also allows "redundancy"; that is, if one
electrical generation station has a failure, other generating stations
can help to send more power into the grid, to make up for the power
Without an electrical grid, there would be no way to get the
electrical power from power generating stations, to everyone who uses
Power grids take electrical power from various sources and deliver the
electrical to other consumers of electrical power. This makes efficient use
of electrical power. The details of how this occurs is not simple.
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Update: June 2012